/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * OPAL Runtime Diagnostics interface driver * Supported on POWERNV platform * * (C) Copyright IBM 2015 * * Author: Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com> * Author: Jeremy Kerr <jk@ozlabs.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _UAPI_ASM_POWERPC_OPAL_PRD_H_ #define _UAPI_ASM_POWERPC_OPAL_PRD_H_ #include <linux/types.h> /** * The version of the kernel interface of the PRD system. This describes the * interface available for the /dev/opal-prd device. The actual PRD message * layout and content is private to the firmware <--> userspace interface, so * is not covered by this versioning. * * Future interface versions are backwards-compatible; if a later kernel * version is encountered, functionality provided in earlier versions * will work. */ #define OPAL_PRD_KERNEL_VERSION 1 #define OPAL_PRD_GET_INFO _IOR('o', 0x01, struct opal_prd_info) #define OPAL_PRD_SCOM_READ _IOR('o', 0x02, struct opal_prd_scom) #define OPAL_PRD_SCOM_WRITE _IOW('o', 0x03, struct opal_prd_scom) #ifndef __ASSEMBLY__ struct opal_prd_info { __u64 version; __u64 reserved[3]; }; struct opal_prd_scom { __u64 chip; __u64 addr; __u64 data; __s64 rc; }; #endif /* __ASSEMBLY__ */ #endif /* _UAPI_ASM_POWERPC_OPAL_PRD_H */